Corner iron for boxes



.March ll, 1930. R. M. wlLDBERG CORNER IRON FOR BOXES Filed June 17.1928 INVENYU. MM 777, w Q

BY I w W A TTORNE Y.

Patented Mar. 11, 1930 UNITED STATES PATENT OFFICE RICHARD M. WILDBERG,OF CINCINNATI, OHIO, ASSIGNOR, BY MESNE ASSIGNMENTS, TO UNITED MILKCBA'I'E CORPORATION, OF CINCINNATI, OHIO, A CORPORATION OF OHIO CORNERIRON FOR BOXES Application filed .Tune 17,

My invention relates to devices for protecting the corners of boxes andcrates, and particularly for boxes which are inten'ded to be stacked oneon the other, in which an upward- 5 ly projecting shoulder is providedfor the inside of the corner to serve as a guide and to prevent theb-oxes from sliding on each other when stacked.

It has been usual to provide separate stack- 0 ing irons, which aremorely nailed to the top of the box at the corners, or if inside fiangesare employe'd, nails have also been used, so that under the strain towhich the stacking irons are subjected, they frequently become loose orare broken off, or the wood is split by the nails.

It is the object Of my present invention to provide such stacking ir'onsformed from an integral blank of sheet metal so bent and O formed, that'depending flanges may be provided for both the inside and outside 'ofthe corner, and that a metal to metal portion is provided for doubleriveting which shall retain the iron in position, even in the event ofone of the rivets giving away, and in which a very strong and effectivecorner stacking iron is provided at a minimum expense.

As the invention relates to the corner iron construction alone, I havenot thought it nec- 0 essary to illustrate an entire box, it beingunderstoo'd that the device is applicable to each of the four Corners ofany open top construction of box.

In the drawings Figure 1 is a plan view of the blank from which thecorner iron is constructed.

Figure 2 is a perspective view of the corner iron as mounted on one ofthe corners of the box.

Figure 3 is a front elevation from the outside of the corner iron.

Figure 4: is a similar view from the inside.

A blank of suitable sheet metal is cut as shown in Figure 1. The body ofthe blank 1 is designed for longitudinal fol-ding on the dotted line 2,an'd for transverse folding on the line 3. The blank is cutwith a slot 4to provide a pair of tongues 5, 6 as a whole, which are designed fortransverse folds on the lines 7 S and 9.. Rivet holes 10 are also 1926.Serial No. 116,680.

punched at the top and bottom of the blank.

The blank is then subjected to a die press, and the two halves of theblank are folded at right angles to each other on the fold line 2,forming a right angled corner of plates 11 and 12.

The tongues are then folded to bring the faces together and to formupwardly projecting portions 18 and 14:, and a slight inward curve 15,16, given on the fold lines 3 and 8 with the portions of the hlankbetween the fold lines bent at right angles to the upst'an'df ingportion, forming horizontal portions 17, 18, and the outer ends are bentdown at right angles to the portions 17 and 18, forming se- Ouringtongues 19 and 20. The tongues 19 and 20 are spaced from the body of theblank the thickness of the sides of the box.

The corner plates are then fitted to the respective corners, and rivetspassed through the woo'd and through the holes 10, which are spaced sothat they will register, and riveted in place metal to metal. Thus theCorners of the wooden boxv are reinforced and strengthened, and as theconstruction is all one integral piece, even if the Wood should be spliton one side, or the rivet broken or displaced, the correspon'ding rivetthrough the adjoining corner will hold the device in place.

I-Iaving thus described my invention what I claim as new and -desire tosecure by Letters Patent is 2- A corner iron for open boxes, formedsubstantially without waste from an integral blank of sheet metal cutand scored to fold longitudinally to form sides, with tongues integralwith the sides fol'ded to form a pair of upwardly two ply return bentprojecting portions to form stacking guides and then horizontally anddownwardly to fit over corners of a wooden box, with rivet openings inthe respective sides and tongues for rivetingV metal to metal.

RICHARD

